import_json

A write tool on the Mcpg MCP server.

SERVERMcpg SOURCEpypi:mcpg

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-devopam-mcpg/import-json.md

WHAT IT DOES

What import_json does on Mcpg

AI agents use import_json to create or update resources in Mcpg, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcpg environment.

RISK

Why import_json is rated Medium

Without explicit description, the name 'import_json' strongly suggests inserting or loading JSON data into PostgreSQL, which is a Write operation (reversible modification). Severity is high because unvalidated JSON imports could corrupt data schemas or introduce malicious payloads into production.

From the tool's definition Tool named 'import_json' on a PostgreSQL MCP server; 'import' typically indicates data ingestion that modifies the database state. Sibling tools show this server manages data policies, query analysis, and database operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs import_json safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcpg, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For import_json, this is the rule to start with:

import_json Rate-limited

import_json stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "import_json": {
      "limits": [
        {
          "counter": "import_json_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcpg, apply this rule, and every import_json call is checked against it from then on.

FAQ

Questions about import_json

What does the import_json tool do? +

import_json is a write tool on the Mcpg MCP server. It is categorised as a Write tool in the Mcpg MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on import_json? +

Register the Mcpg MCP server in PolicyLayer and add a rule for import_json: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcpg. Nothing to install.

What risk level is import_json? +

import_json is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit import_json? +

Yes. Add a rate_limit block to the import_json rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block import_json completely? +

Set action: deny in the PolicyLayer policy for import_json. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides import_json? +

import_json is provided by the Mcpg MCP server (pypi:mcpg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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